[Dragon] Wuxi large diameter thick-walled seamless steel pipe 45 # - 45 # Ningbo large-diameter thick-walled seamless steel pipe plant 
 Cold-rolled (allocated) Subject to sub-general seamless steel pipe, low and medium pressure boiler pipe, high pressure boiler steel pipes, steel pipes, stainless steel pipe, oil cracking pipe, other pipe, but also including thin-walled carbon steel, alloy steel thin-walled, thin-walled stainless steel, special steel pipe. Hot-rolled seamless pipe diameter is generally greater than 32mm, wall thickness 2.5-75mm, can be cold-rolled seamless steel pipe at the track to 6mm, wall thickness to 0.25mm, thin-walled tube diameter can be to 5mm, thickness less than 0.25 mm, cold than hot-rolled high dimensional accuracy.